21779945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{461}}^1\times {\mathrm{859}}^1$

素因数の和:1336

約数の個数: 16

約数和(自身を含む): 28607040

約数和(自身を除く): 6827095

約数列:

[1, 5, 11, 55, 461, 859, 2305, 4295, 5071, 9449, 25355, 47245, 395999, 1979995, 4355989, 21779945]

約数ペア:

[(1, 21779945), (5, 4355989), (11, 1979995), (55, 395999), (461, 47245), (859, 25355), (2305, 9449), (4295, 5071)]